At what point in the cardiac cycle does the semilunar valve close? a. when ventricular pressure becomes greater than atrial pressure b. when ventricular pressure becomes greater than aortic pressure c.

At what point in the cardiac cycle does the semilunar valve close?

a. when ventricular pressure becomes greater than atrial pressure
b. when ventricular pressure becomes greater than aortic pressure
c. when atrial pressure becomes greater than ventricular pressure
d. when pressure in the ventricle becomes less than aortic pressure

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